grinding gears

BC Sunshine

BC Sunshine

Active Member
with the clutch fully to the floor, why might i be getting some grinding when shifting? :eek:

There isn't a tachometer, so I don't know the RPMs at the time - or does that matter?
 
Looks like is only me around again:)
Is it OK going into first as you pull away? The synchromesh's do wear in the gearboxes and if that's what it is then careful shifts help, slow deliberate gear changes and don't rush it. A low oil level wont help so when it goes in for service get them to check the oil level in the gearbox, it should be filled with 20/50 multigrade - the same oil that's used in the engine.
You will get a feel for when you need to shift up, 1st just to get you moving into 2nd to 15/20 mph, 3rd 25/30 and top all the way up to - what ever it will do;)
 
When was the last time you bled the clutch? When I got mine the slave was mounted on the wrong side of the bellhousing. I have no idea how the piston didn't fall out of the bore. It was grinding in all gears and slipping a little. A swap to a new slave and a bleed and no dramas...yet.
 
The service records show last clutch work in Dec 2015.
clutch disc, pressure plate, release bearing, replaced clutch fork pivot bushing etc.

As far as double clutching - sometimes its the only way to get it in gear :rolleyes:
 
Try putting it into reverse whilst totally stationary and see if it crunches. If so try putting it into first (remain stationary) then back into neutral and then into reverse. If this helps it points towards a clutch fault. Which I'm pretty sure it will be as the chances all your synchromesh rings going is slim. Although like panky says low oil could be the culprit. Don't be blinded by the fact that you have evidence of a recent' ish clutch change as a wrong or faulty component could easily have been used.
 
Could be low clutch fluid level due to a weep from the master cylinder or elsewhere.
Lift up the drivers side carpet, un screw the 3 screws and remove the filler cover plate and top up the clutch fluid. If this improves the gear change you have likely lost fluid overtime due to a weep.
Can usually tell as it gets progressively worse.
 
Thanks for all the fine input.
I've booked a servicing and will let those better equipped than I check all that needs checking. I have noticed there is quite the 'thunk' shifting to first, and also reverse.

No one said driving a Commer would be boring!
 
It might be helpful, if possible, to post a picture of your clutch slave cylinder to check its positioning on the bellhousing.
 
I'd go with low fluid or the slave cylinder mounted wrong side of bell housing. Weeeping would slowly get worse (had this on mine and a top up fixes it) the wrongly mounted cylinder would kind of work certainly when fluid is full but would degrade quickly as the fluid level dropped
 
Saul said:
Could be low clutch fluid level due to a weep from the master cylinder or elsewhere.
Lift up the drivers side carpet, un screw the 3 screws and remove the filler cover plate and top up the clutch fluid. If this improves the gear change you have likely lost fluid overtime due to a weep.
Can usually tell as it gets progressively worse.
Click to expand...
I'd agree, you have probably already checked the clutch fluid level but if you haven't then check the brake fluid level at the same time.
 
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